When to Plant Elderberry in Haiku, Hawaii (96708)

Location

Haiku, Hawaii

ZIP Code

96708

USDA Zone

12a

Last Frost

Thursday, January 1, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Thursday, December 18, 2025

Based on last frost Thursday, January 1, 2026 · Zone 12a

Pro tip: Sow Elderberry directly outdoors 2 weeks before your last frost date.

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🌿 Plant Details

Scientific Name Sambucus nigra

Days to Maturity 730 days

Mature Height 60-120"

Spread 60"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

60" apart

🌱

Planting Depth

4" deep

Seeds typically germinate in 30-60 days

Ready to Plant Elderberry in Haiku?

Get your seeds now so they're ready by Thursday, December 18, 2025.

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🤝 Good Companions

YarrowComfrey

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Full Companion Planting Guide for Elderberry

See which plants help Elderberry thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌿 Fruit Tree Fertilizer 🕸️ Garden Netting 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Harvest fully ripe, dark purple-black berry clusters in late summer.

Processing

Mash berries in water, float off pulp, collect sinking seeds, spread to dry thoroughly.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Cold-stratify seeds for 3–4 months before planting to break dormancy — without this, germination is very poor.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 1 plant of Elderberry. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Elderberry in Haiku, Hawaii? +

In Haiku (Zone 12a), direct sow Elderberry outdoors around Thursday, December 18, 2025.

What is the last frost date for Haiku, Hawaii? +

The average last spring frost date for Haiku, Hawaii (ZIP 96708) is around Thursday, January 1, 2026. This is based on NOAA climate normals for USDA Zone 12a.

How long does Elderberry take to grow? +

Elderberry typically matures in about 730 days from direct sowing. In Haiku, that means you can expect harvest around Thursday, December 18, 2025 plus 730 days.

Should I start Elderberry indoors or direct sow in Hawaii? +

Elderberry does best when direct sown outdoors. In Haiku, sow directly around Thursday, December 18, 2025.

📚 More Elderberry Planting Guides

🗺️

Elderberry in Hawaii

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 12a Elderberry Guide

All cities in your zone · Avg dates

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Other Plants for Haiku

Blackberry Blueberry Raspberry Strawberry Basil Chamomile Chives Cilantro Dill Lavender Lemon Balm Marjoram Mint Oregano Parsley Rosemary Sage Tarragon Thyme Acorn Squash Artichoke Arugula Asparagus Beefsteak Tomato Beet Bell Pepper Bok Choy Broccoli Brussels Sprout Butternut Squash Cabbage Cantaloupe Carrot Cauliflower Cayenne Pepper Celery Cherry Tomato Chili Pepper Collard Green Common Bean Cucumber Eggplant Endive Fennel Garlic Grape Tomato Green Bean Habanero Pepper Head Lettuce Heirloom Tomato Honeydew Melon Jalapeño Pepper Kale Kohlrabi Leaf Lettuce Leek Lima Bean Mustard Okra Onion Parsnip Pea Poblano Pepper Pole Pea Potato Pumpkin Radicchio Radish Rhubarb Roma Tomato Rutabaga Serrano Pepper Shallot Snap Pea Snow Pea Spaghetti Squash Spinach Squash Sweet Corn Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini Sunflower Marigold Zinnia Nasturtium Cosmos Echinacea (Coneflower) Petunia Black-eyed Susan Apple Tree Pear Tree Peach Tree Plum Tree Sweet Cherry Tree Lemon Tree Borage Lemongrass Ginger Stevia Tomatillo Edamame Fava Bean Mâche Mizuna Sorrel Shishito Pepper Banana Pepper Watermelon Radish Napa Cabbage Popcorn Broccoli Raab Catnip Valerian Lemon Verbena Bee Balm Anise Lovage Chervil Summer Savory Dahlia Snapdragon Pansy Sweet Pea Morning Glory Hollyhock Larkspur Bachelor Button Columbine Impatiens Salvia (Annual) Sweet Alyssum Celosia Lupine Verbena Grape Vine Red Currant Gooseberry Serviceberry Fig Tree Avocado Tree Persimmon Tree Olive Tree

Growing Elderberry in Zone 12a

Elderberry (Sambucus nigra) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should direct sow seeds around Thursday, December 18, 2025.

Your average last frost date is Thursday, January 1, 2026. Elderberry grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.